Home / 485,827,114,847.35-670,118,593,976.55-312,431,471,242.22

Finding the Fourth Proportional to 485,827,114,847.35, 670,118,593,976.55 and 312,431,471,242.22

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Solution

The fourth proportional to 485,827,114,847.35, 670,118,593,976.55 and 312,431,471,242.22 is: 430,947,824,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,827,114,847.35 : 670,118,593,976.55 = 312,431,471,242.22 : x
  2. Step 2: Convert to fraction form
    485,827,114,847.35/670,118,593,976.55 = 312,431,471,242.22/x
  3. Step 3: Cross multiply
    485,827,114,847.35x = 670,118,593,976.55 × 312,431,471,242.22
  4. Step 4: Simplify right side
    485,827,114,847.35x = 209,366,138,222,861,380,222,976
  5. Step 5: Solve for x
    x = 209,366,138,222,861,380,222,976/485,827,114,847.35
  6. Step 6: Final answer
    x = 430,947,824,492.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.